50W Hand Crank Generator Emergency USB Mobile Phone Charging 12V Permanent Magnet Mini Generator Physical Electromagnetics ,Easy to Use

Innovative design, mechanical energy is transformed into electrical energy, and new hand generator All ball bearings are used, with long service life. Disk type cored generator High purity enamelled copper coil is used, with neat wire arrangement and exquisite workmanship The rotor adopts rare earth NdFeB strong magnetic field with strong magnetic field and high output power. The transmission synchronous wheel (1:3) is used